// ============================================================================
//
// Copyright (C) 2006-2007 Dengues
//
// Google Group: http://groups.google.com/group/dengues
// QQ Group: 24885404
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// ============================================================================
package org.dengues.warehouse.viewers.process;

import java.lang.reflect.InvocationTargetException;

import org.dengues.commons.IDenguesSharedImage;
import org.dengues.commons.utils.ImageUtil;
import org.dengues.core.ExceptionOperation;
import org.dengues.core.actions.AbstractAction;
import org.dengues.core.warehouse.ENavNodeType;
import org.dengues.core.warehouse.ENodeCategoryName;
import org.dengues.core.warehouse.IWarehouseView;
import org.dengues.designer.ui.process.editors.ProcessEditorInput;
import org.dengues.model.warehouse.ProcessType;
import org.dengues.warehouse.i18n.Messages;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbenchPage;

/**
 * Qiang.Zhang.Adolf@gmail.com class global comment. Detailled comment <br/>
 * 
 * $Id: Dengues.epf 2008-1-7 qiang.zhang $
 * 
 */
public class EditProcessAction extends AbstractAction {

    /**
     * Qiang.Zhang.Adolf@gmail.com EditProcessAction constructor comment.
     */
    public EditProcessAction() {
        super(Messages.getString("EditProcessAction.Label")); //$NON-NLS-1$
        setImageDescriptor(ImageUtil.getDescriptor(IDenguesSharedImage.ACTION_EDIT));
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.jface.action.Action#run()
     */
    @Override
    public void run() {
        final IWorkbenchPage page = getActivePage();
        try {
            IRunnableWithProgress op = new IRunnableWithProgress() {

                public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                    monitor.beginTask(Messages.getString("EditProcessAction.taskLabel"), IProgressMonitor.UNKNOWN); //$NON-NLS-1$
                    try {
                        ProcessType processType = (ProcessType) pnodes.get(0).getObject().getData();
                        final ProcessEditorInput input = new ProcessEditorInput(processType, getPath());
                        input.setWarehouseNode(pnodes.get(0));
                        Display.getDefault().asyncExec(new Runnable() {

                            /*
                             * (non-Javadoc)
                             * 
                             * @see java.lang.Runnable#run()
                             */
                            public void run() {
                                try {
                                    input.getProcess().checkProcess();
                                    page.openEditor(input, IWarehouseView.PROC_EDITOR_ID, true);
                                } catch (Exception e) {
                                    ExceptionOperation.operate(e);
                                }
                            }
                        });
                    } catch (Exception e) {
                        ExceptionOperation.operate(e);
                    } finally {
                        monitor.done();
                    }
                }
            };
            new ProgressMonitorDialog(Display.getCurrent().getActiveShell()).run(true, false, op);
        } catch (Exception e) {
            ExceptionOperation.operate(e);
        }

    }

    /*
     * (non-Javadoc)
     * 
     * @see org.dengues.core.actions.AbstractAction#getLevel()
     */
    @Override
    public int getLevel() {
        return 111;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.dengues.core.actions.AbstractAction#computeEnable()
     */
    @Override
    protected boolean computeEnable() {
        boolean isEnable = false;
        if (pnodes != null && pnodes.size() == 1) {
            if (pnodes.get(0).getNodeType() != ENavNodeType.SYSTEM_FOLDER && !pnodes.get(0).isBin()) {
                isEnable = ENodeCategoryName.PROCESS == pnodes.get(0).getCategoryName()
                        && ENavNodeType.ELEMENT == pnodes.get(0).getNodeType();
            }
        }
        return isEnable;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.dengues.core.actions.AbstractAction#getDoubleClickClass()
     */
    @Override
    public Class getDoubleClickClass() {
        return ProcessType.class;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.dengues.core.actions.AbstractAction#isDoubleClick()
     */
    @Override
    public boolean isDoubleClick() {
        return true;
    }

}
